Sushma B, and Karthik Ganesh Mohanraj. “Prevalence, Knowledge and Perception of Insomnia and Hypersomnia Condition Among Young Adult Population – A Questionnaire-Based Survey”. International Journal of Research in Pharmaceutical Sciences, vol. 11, no. (SPL 3), Nov. 2020, pp. 1881-7, https://ijrps.com/home/article/view/3459.